Damper-regulator for heaters.



No. $932,974. PATBNTBDJULY 21,1908.

' '-R. J. RONE. DAMPBR REGULATOR FOR HEATBRS.

` APPLICATION FLBD APR. l'l, 1906.

SHEETS-SHEET 2.

I ROBERT J. RONEY, OF SYRACUSE, NEW YORK.

DAMPER-REGULATOR FOB HEATERS.

Specifica-tion of Letters Patent.

i Patented .my 21, 190s.

Application led April 17, 1906. Serial No. 312,199.

To all whom it may concern:

Be it known thatl I, ROBERT J. Roxnr, of Syracuse, in the county of Onondaga, in the State of New-York, have invented new and useful Improvements in Damper-Regulators for Heaters, of which the following, taken in connection with the accompanying drawings,

is a full, clear, and exact description.

This invention relates to improvements in' damper regulators for furnaces and other heaters which are usually located in the cellar or'basement, and are provided with a draft or smoke damper, draft-door and coldair check-damper or valve, the draft-door and check valve being usually 'controlled by chains or cables extending to the upper floors 'of the building, while the main draft or smoke. damper vis generally adjusted in the cellar only.

The essential purpose of my present invention is to enable all three of these dampers to be controlled by a single-operating member in one of the upper rooms of the building, or allowed to return to their normal positions by the operation of a single hand-piece locatedin the cellar or in proximity to the furnace. By the normal positions of the dame'rs is meant, that the cold air check-damper is closed, while the smoke-damper and draftdoor are o en to the maximum degree. One of t e specific objects is to connect the cold-air-check-damper to the draft-door in such manner that when the cold-air check valve or damper is closed the draft door is opened, that is, the cold-air check-damper automatically closes by its own gravity and is of sufficient weight to overbalance the weight of, and .to open the draft-door when allowed to close.

A further object is to connect the cold-air check-damper and smoke damper with a lost lmotion suflicient to allow the cold air checkdamper to be opened to a limited extent without aii'ecting the position of the smokedamper, but when moved beyond the .limit of its lost motion, operates to close the smoke dam er to a greater or less degree, according to t e degree of movement` of the cold air check-damper. On the other hand this connection between the cold-air check-damper and smoke damper is such that when the checledamper is allowed to close the smoke damper is positively operated to its l'ull openposition simultaneously with the opening of the draft-door.

Another object is to provide a movable detent for holding the damper-adjusting member .in its adjusted position, and to connect said detent to the hand-piece in the cellar whereby it may be tripped to allow the various dampers to return to their normal posi tions.

A still further object is tov conceal the i plied to a hot-air furnace which is shown by dotted lines. Fig. 2 is an enlarged vertical sectional view of a portion of the draft-pipe or `smoke-pipe and cold-air conduit showing the cold-air cl'ieck-damper and smoke-damier, and connections between the same. igs. 3 and 4 are detail sectional views taken respectively on lines 3 3, and 4-4, Fig. 2.

Fig. 5 is an elevation, partl broken away, of

the damper-operating mem er and detent, together with apart of the sup orting-frame or guide. Fig. 6v is aI vertica sectional view from front to rear, of the guide or frame for the operating members seen in Fig. 5, showing a concealing tube or case for the chain or cable, which in this instance, is attached to the upper end of the adjusting member.

Fig. 7 is a horizontal sectional view taken on line 7-7-, Fig. 6.

In Fig. l the furnace, as A-, is represented. by dotted lines, and is provided with a rearwardly extending draft-pipe 1- having an upward exten sion -2- and tern'iinat ing at its rear end i`n anupright cold-air checkpipe -3-, the front of the furnace being provided with the usual ash-pit door 4 and main draft-door -5--, which is hinged at its upper edge at to the door-frame -4-. A damper -7- is centrally pivoted and balanced in the pipe 1*- between the upright extension -2-l and adjacent side of the furnace 7-A and is connected at the rear side of its pivot by a link -8- to the upright arm 12 which is secured to the upper end of a conical. cold-air checlevalve 13 This valve 13 is movable ver tically in the cold-air flue 3 into and out of engagement with. a suitable seat M just below the adjacent end of the draft-pipe 1 and. is preferably hollow and arranged with its apex at the bottom and is open at the top to permit the insertion of additional ballast or weight, as may be desired, to counter-balance the weight of the draft-door 5 The cold-air pipe 3' is provided with an inlet 3 some distance below'the valve --l3- and its seat 14 which latter are 'therefore located between the inlet 3 and the adjacent end of the draft-pipe 1 to cut off communication between the cold- `air inlet and draft-pipe when the check-darm per'is closed.

One of the objects in ta ering the valve 13 downwardly is to enable itto automatically center and adjust itself to its seat 14 when closing, and at the same time, to afford sufiieient. clearance between the valve and its seat to permit the upward passage of coldto out toit' communication between t e drafti i er and atlnos )here exceit through the P j] l 1 l e in e Secured/to the upper end of the valve 13- is a vertical guidea'ed or stem 16 which is guided in a cross-bar 17 in the upper end of the pipe' 3 ,vsaid rod or stern extending upwardly through an aperture in the eap 15 and is connected to one end of a chain or eable 18 the other end of whieh is attached to a verticall adjustable operating member 19 located/in one of the upper roms of the building and guided in a suitab' e wall-plate or frame 2G The upper end of thls'rod or stern 1ois -also con.- nected to one end of aseparatc cable 21 which is passed over suitable, rollers 22 l and has its u )per end connected to the free" edge ofthe vraft-door" thereby connecting the valve 13 to the draft-door 5 these connections being so adjusted that when the valve 13 is rlosed upon its seat M the Adraft-door 5 will-.be opened to its maxinulm degree .and will be held o v)en by thc ircponderenee of weight .of the valve 13 rl`he chain or eable 18- is passed around suitable rollers 23 so as to exert a direct upward pull on the valve l 3- when the adjusting .member l9 is moved verticallyin its guide --20 This damperoperating member 19 is provided with a series of teeth 24- on one of its 'vertical edges adapted to be engaged by a paw] or detcnt 25- which is pivoted at 26 to .tieally taut so that an essere the framev 20' and is held in engagementwith the teeth ly a suitable spring 27 as best seen in Prg. 5. y

The upper end of the operating merrber 19- is provided with a hand-piece 28- -projeeting through a slot 29 in the plate 20 and itis now evident'that by sliding the toothed rack 19 vertically, or upwardly, by means of the hand-piece 28 the dam er or .valve 13 will be correspondingy elevated from its seat 14 t rough the .medium of the chain 18 and that by releasing the toothed yrack from `the hand, it will be held in its` adjusted position by the spring-actuated detent 25 T-hevalve 13 may therefore, be opened or elevated gradually to an desired degree, during which operation tile draft-door 5 closes a corres ondin degreejby its own. gravity,iwhich reeps t e chain 21 rac- Inovement o the valve 13 causes a simi ar movement of the draft-door 5 The` damper 7-. is practically balanced upon its pivotal' bolt, as 7" ..,V and the lever Q isalso substantially balanced u on the pivotal bolt 10 so that aside 'rom the positive op.

eration transmitted to the leverl 9 and damper 7 by the arm 12 they would remain in either of their adjusted positions.

The slot 11 in the arm 12 1s considerablylonver vertically than the adjacent end of the lever Q which it receives, but

theseparts Q and 12 are so relatively adjusted that when t" :valve 13 is closed upon its seat 14 the upper end of the slot 11- engages and hol s the adjacent en d 'of the lever Q down to the `osition shown in Figs. 1, and 2, thereby hol ing the damper 7 in its extreme open position where it vremains during a limited upward `movement Aof the .valve 13 as determined by the len th of the slot 111 This allows the va ve 13 and door` 5 to be 'espectively opened and closed a limited distance without effecting an operation of the damper 7 thatis, t e cold-air check valve may be o ened and the draft-door 5 partially close( without closing the main damper 7 thereby affording a very close regulation of the draft. If, however, it is desired to close the main draft-damper 7 it is'simply necessary to raise the operating 'member 19- a trifle higher, thereby further elevating the valve 13`until the lower end of the slot 11 engages and elevates the adjacent end of the lever Q which depresses the opposite end of said lever and roeks the damper 7 toward, or to the fully closed position, as shown by dotted lines in Fig. 2, or the damper 7 may be adjusted to any intermediate position, depending upon the degree of elevation ofthe operating member 19 The connect1ons between the draft-door 5 valve 12%-, and damper -7- are so adjusted as to permit the draft-door -5- to nearly close by the elevation of the valve 13 before the lower end of the slot --11- engages the adjacent end of the lever -9- so that the draft-pipe -2- is placed in direct communication with the atmosphere through the inlet 3/- and the draft-door -5- is nearly closed before the damper -7-' is moved 'from its extreme open position', but itl this does not check the iii-e su'iliciently the damper --7- may be wl'iolly or partiallyT closed by the further upward adjustmentof the operating member 19-- and valve 13--., thereby completingl the closing ol the draftdoor -5- and the urther opening@r ofthe valve 1.3-,

It will be seen from the foregoing description that it is necessaryto extend only one of the cables or chains, as -18-, upwardly through the iioors of the building to the operating member --19-' and that the entire system ofv draft-regulators -5-, 7- and 13- may be controlled by this one chain because I have provided the detent --25- with an exposed finger-piece "-30- which may be depressed by the operator to release the sliding 'meniber ---lQ- and allow the latter to fall by gravity assisted by the weight ol' the valve lf3- to its normal position, as seen inlrig. l the valve i3d returning to its seat wand incidentally o'iening the valves and-"7mthrough t te medium ol the chain -21-- and lever --v-Slrespectively. `lt may be desired, however, to trip the pawl --2:3--- from the cellar, and for this purpose l attach to said pawl one end of a chain or cable --SI--vwhich is passed downwardly through the lloorsoi `the building and around suitable idlers or rollers --32 m, and has its other end provided with a handle ---2%3--- in proximity to the furnace, and

within easy reaching distance ol" the operator, so that il the regulators are adjusted from their normal position, they may be released by simply pulling down upon the' handle "-33- to trip theA detent -2f--- The main object of the invention is to )ermit all ol' the regulators to be controlled lrom the room in which the adjusting inember 1) is located, and in most instances, a single chain will be employed in connection with the operating member M10, and in order that this chain may be concealed in the partition, it is shown in Fig. 6, as attached to 'a rearwardly projecting stud on the upper end ol the sliding rack --H-lland as Vinclosed within a suitable rase 35 within the partition, that is, be-

hind tbe lath and plaster', as -I('-, said4 raming H5- being inserted through an opening 557 in the wall and is covered by thc plate 20 ln order that the check-pipe and `smoke-pipo may be easily removed jacent art, which latter are clamped to the collar )j set screws -40-- The pivotal bolts -7- and 10-- are journaled in the sides of the draft-pipe -1-- and preferably in open-sided slots --41- and -42- in the meeting ends of the collars -38- and draft- -80 pipe section --1 so that when the check-pipe and draft-pi e are separated, the damper -7, and ever -9- .may be removed from the open sided bearing in which they are journaled.

Vhat I claim is: 1. In a device of the character described, a draft-pipe, a damper in .the draft-pipe, a check pipe communicating with the draftpipe, a self-closing valve 1n the check ipe and connected to the damper with a ost motion, whereby the valve may be opened a limited distance independently of the damper, said connections operating to move the damper when the valve is moved beyond the degree of lost motion, andmeans for oper- Y ating the valve.

2. In a device of the character described, a. draft-pi ie, a check-pipe communicating with th'e dra -t pipe, a damper in the draftipe,- a check-valve in the check-pipe, a lever exibly connected to the damper and also connected to the valve with a lost motion, whereby the valve may have a limited movement irrespective of the damper, said lever being actuated by tlie valve when moved beyond the limit o f its lost motion to actuate the damper,

and means to actuate the valve.

3. In a damperregulator for heaters,'the

combination of a draft-pi e and a check-pipe projecting downwardly t ierefrom, the latter ming provided with a valve seat below its junction with the draft-pipe, a valve movable vertically and bodil to and fromsaid seat, a damper in the dra t-pipe, connections,115

:u 11 e, demper regulator for heaters, e 'pe and. a, cheek-pipe conununieeting h, e demper in. the draft-pipe, a in @he eheek-pipe,meuns actuated by mire when closing for opening the darn- S'eii valve having a limited movement ite open position independently of A er, andzmezuis for reising mici, 1ewerbe waive., 1 i n, dmiipeir regulator for heaters, a pipe :md e cheek-pipe communicating tiiverewini, e damper in the draft-pipe, :i eh e131a'veive in the eheokipe, e lever having one emi fexibiy connecte( to the damper and 1g, its other end. Connected-With a 10st motion to the valve, mid means for raising and lowering the .f'filve n. e demper regulator for heaters, e

-, the draft pipe, said valve being movable from its seat fibovethebottom of @he adjacent end. of the draftpipe', e lever Vhswmg one end com lleeted to 'the demper and i 'other end cong- .ueeted with e lost motion te the valve to per-r mit lehe ie-terfro be raised e iimed dietenee without e'eeting the operation of the lever or demper, und. means for raising the valve.

' In Witness Tvif'hereof I have hereunto se my hand this tenth dey of April, 1906.

' 'ROBERT RQNEY.

/Vitrieeses:

H. E. CHASE@ Mailman M. No'r'r. 

